They recognize that clinical trials showed modest effects (average 2.6 kg over 12 weeks in responders), appreciate that individual response varies significantly, commit to proper nutrition and exercise foundations, and accept that the peptide is used for research purposes under medical supervision
Upper arm injections fall somewhere between the two
Aliquoting prevents repeated freeze-thaw cycles
Limited data indicate vitamin B12 deficiency may contribute to menstrual irregularities (but more study is needed)
In UK practice, monitoring is primarily based on clinical response rather than routine blood tests, as post-treatment serum B12 measurements can be misleadingly high and may not reflect tissue levels
Expert Opinion on Biological Therapy , 12 (1), 3751